Diesel Performance

Only from Fleece, a complete fuel supply upgrade kit for your 1991-1998 Dodge Cummins. Includes a new sending unit and float to get your fuel gauge working again! The PowerFlo Lift Pump is the latest OEM replacement performance lift pump from the diesel experts...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! FEATURES Direct OEM In-Tank Replacement: The PowerFlo Lift Pump retains...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance now available for Cab and Chassis models! Features Direct OEM In-Tank Replacement: The PowerFlo Lift Pump retains the factory water-in-fuel sensor, factory fuel heaters, factory...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance now available for Cab and Chassis models! Features Direct OEM In-Tank Replacement: The PowerFlo Lift Pump retains the factory water-in-fuel sensor, factory fuel heaters, factory...

Dress up your Cummins with this Orange billet aluminum oil cap cover. It is anodized black and laser etched with the Fleece Performance "F". It is a great accessory to add to your Cummins whether it's your first Fleece Performance part, or if it...

Dress up your Cummins with this Blue billet aluminum oil cap cover. It is anodized black and laser etched with the Fleece Performance "F". It is a great accessory to add to your Cummins whether it's your first Fleece Performance part, or if it...

Fleece Performance Universal 3/8in NPT Hex Socket Plug - Black

Fleece Performance Universal 3/4in NPT Hex Socket Plug - Black

Replacement 1/8" NPT fitting with integral face seal O-ring. Part Type: Plug Fittings Fitting Size: 1/8 in. NPT Head Style: Internal allen Fitting Color: Stainless Fitting Material: Stainless Steel

Fleece Performance Universal 1/8in NPT Hex Socket Plug - Black

Fleece Performance Universal 1/4in NPT Hex Socket Plug - Black

Fleece Performance Universal 1/2in NPT Hex Socket Plug - Black

The FPE-LSR-FMJ-SD10X is a premium aluminum Gen V LS Standard Deck Race Block designed for high-performance applications. Engineered with precision and built for durability, this race block delivers unmatched strength and compatibility with OEM LS accessories. Whether you're upgrading for competitive racing or seeking...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block...

Clean up under the hood of your dodge by replacing your space hogging shock towers with this sleek set of Low Profile Shock Mounts! These low profile shock mounts are built from high quality 1/4" 304 stainless steel and are perfect for gaining the...

Easily rebuild your lift pump and stage 1 fuel filter assembly on your Cummins equipped 2016-2019 Nissan Titan XD with our complete rebuild kit! Our Fleece Performance Lift Pump and Filter Kit includes a brand new fuel pump, Fleet Guard fuel filters, and all...

The 63mm FMW Duramax VNT Cheetah Turbocharger is a drop-in replacement turbocharger for 2011-2016 Duramax diesels. It comes with a Fleece Performance Engineered 63mm FMW compressor wheel and high flow Cheetah turbine wheel. This drop-in replacement turbo is guaranteed to enhance your driving experience....

Want to get rid of that big ugly resonator under the hood of your LML? This billet aluminum plate, anodized in black with "Fleece" engraved across the top will take its place and give your truck some personality. Our resonator delete plate is designed...

Make installation and removal of the dosing injector fuel line on 2011-2016 LML Duramax engines a breeze with our fuel line disconnect tool.  This Part Fits: Year Make Model Submodel 2015-2016 Chevrolet Silverado 2500 HD High Country 2011-2016 Chevrolet Silverado 2500 HD LT 2011-2016 Chevrolet...

Replacement CP3 fuel return hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models.This Part Fits: Year Make Model Submodel 2015-2016 Chevrolet Silverado 2500 HD High Country 2011-2016 Chevrolet Silverado 2500 HD LT 2011-2016 Chevrolet Silverado 2500 HD LTZ...

Replacement CP3 fuel feed hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models.This Part Fits: Year Make Model Submodel 2015-2016 Chevrolet Silverado 2500 HD High Country 2011-2016 Chevrolet Silverado 2500 HD LT 2011-2016 Chevrolet Silverado 2500 HD LTZ...

Convert your LML's fuel system from a CP4 to a CP3. Improve your LML Duramax's reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax...

Convert your LML's fuel system from a CP4 to a CP3. Improve your LML Duramax's reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax...